diff --git a/src/response.ts b/src/response.ts
index 71867f0..ac6b167 100644
--- a/src/response.ts
+++ b/src/response.ts
@@ -7,6 +7,7 @@
  * file that was distributed with this source code.
  */
 
+import { Buffer } from 'node:buffer'
 import etag from 'etag'
 import vary from 'vary'
 import fresh from 'fresh'
diff --git a/tests/response.spec.ts b/tests/response.spec.ts
index ff2a842..aa5d8b4 100644
--- a/tests/response.spec.ts
+++ b/tests/response.spec.ts
@@ -7,6 +7,7 @@
  * file that was distributed with this source code.
  */
 
+import { Buffer } from 'node:buffer'
 import etag from 'etag'
 import fsExtra from 'fs-extra'
 import { join } from 'node:path'